Java.lang.NullPointerException by make a comment

Steps to reproduce:
Create a new program
Add variable (e.g.: Var_1 = 1)
Add a move command
Add a Waypoint
Add a Stop condition in the Waypoint
use “Ausdruck” (Condition)
Set the condition to Var_1 > 1
Save the programm

If you now try to set the stop condition as a comment, the error occurs.

Affected Version(s):
UR-Sim Polyscope version 5.19

UR-Sim PolyScope V5.19 Test_error.zip (5.0 KB)

Has anybody else tried this or is this only a problem of my installation?

Could it be a problem with the quotation mark?